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From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject Re: Can MOB be enabled for existing table?
Date Thu, 20 Sep 2018 22:09:50 GMT
Hi Andrea,

I will say that the easiest way to know is to try it... I'm guessing that
it should work. When HBase will compact the file, it will figure that some
fields are bigger than the configures MOB threshold and will move them
under the MOB umbrella. But this has to be tested. Let us know.

Thanks,

JMS

Le jeu. 20 sept. 2018 à 08:26, Andrea Fonti <andreafontict@gmail.com> a
écrit :

> Hi,
>
> I’m currently running HBASE on a Cloudera CDH 5.8.4 distribution
> (hbase-1.2.0+cdh5.8.5+263), is it possible to enable MOB for a column of an
> existing multi terabyte table?
>
> If the answer is affirmative what will hbase do with the existing data?
> Will it rewrite with MOB files the next major compaction?
>
> Thank you
>
> Andrea

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